<template>
  <div class="upload-file">
    <el-upload
      multiple
      :action="uploadFileUrl"
      :before-upload="handleBeforeUpload"
      :file-list="fileList"
      :limit="limit"
      :on-error="handleUploadError"
      :on-exceed="handleExceed"
      :on-success="handleUploadSuccess"
      :show-file-list="false"
      :headers="headers"
      :data="TechInfo"
      :name="productTechFile"
      class="upload-file-uploader"
      ref="fileUpload"
    >
      <!-- 上传按钮 -->
      <el-button size="mini" type="primary">选取文件</el-button>
      <!-- 上传提示 -->
      <div class="el-upload__tip" slot="tip" v-if="showTip">
        请上传
        <template v-if="fileSize">
          大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b>
        </template>
        <template v-if="fileType">
          格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b>
        </template>
        的文件
      </div>
    </el-upload>

    <!-- 文件列表 -->
    <transition-group
      class="upload-file-list el-upload-list el-upload-list--text"
      name="el-fade-in-linear"
      tag="ul"
    >
      <li
        :key="file.productTechFile"
        class="el-upload-list__item ele-upload-list__item-content"
        v-for="(file, index) in fileList"
      >
        <el-link
          :href="file.productTechFile"
          :underline="false"
          target="_blank"
        >
          <span class="el-icon-document">
            {{ getFileName(file.productTechFile) }}
          </span>
        </el-link>
        <div class="ele-upload-list__item-content-action">
          <el-link :underline="false" @click="handleDelete(index)" type="danger"
            >删除</el-link
          >
        </div>
      </li>
    </transition-group>
  </div>
</template>
  
  <script>
import { getToken } from "@/utils/auth";
import { getfilelist,delfile } from "@/api/mes/pro/routeproduct";

export default {
  name: "FileUpload",
  props: {
    // 值
    value: [String, Object, Array],
    // 数量限制
    limit: {
      type: Number,
      default: 5,
    },
    // 大小限制(MB)
    fileSize: {
      type: Number,
      default: 5,
    },
    // 文件类型, 例如['png', 'jpg', 'jpeg']
    fileType: {
      type: Array,
      default: () => ["doc", "xls", "ppt", "txt", "pdf"],
    },
    // 是否显示提示
    isShowTip: {
      type: Boolean,
      default: true,
    },
    //上传时的参数
    productTechInfo: {
      type: Object,
      default: function () {
        return {};
      },
    },
    //url的路径
    fileUrl: {
      type: String,
      default: function () {
        return {};
      },
    },
  },
  data() {
    return {
      number: 0,
      uploadList: [],
      // fileUrl: "/mes/file/upload",
      uploadFileUrl: process.env.VUE_APP_BASE_API + this.fileUrl, // 上传文件服务器地址
      headers: {
        Authorization: "Bearer " + getToken(),
      },
      fileList: [],
      //PLM需要的特殊参数
      TechInfo: {
        productTechInfo: "",
      },
      //PLM需要的特殊参数
      productTechFile: "productTechFile",
    };
  },
  created() {
    this.TechInfo.productTechInfo = JSON.stringify(this.productTechInfo);
    //查询
    this.getSOPfile();
  },
  mounted(){
    //查询
    this.getSOPfile();
  },
  watch: {
    productTechInfo: {
      handler(val) {
        console.log(val,"===========aaaaaaaaaaa============");
        this.TechInfo.productTechInfo = JSON.stringify(val);
        this.getSOPfile();
      },
    },
    value: {
      handler(val) {
        // if (val) {
        //   let temp = 1;
        //   // 首先将值转为数组
        //   const list = Array.isArray(val) ? val : this.value.split(",");
        //   // 然后将数组转为对象数组
        //   this.fileList = list.map((item) => {
        //     if (typeof item === "string") {
        //       item = { name: item, url: item };
        //     }
        //     item.uid = item.uid || new Date().getTime() + temp++;
        //     return item;
        //   });
        // } else {
        //   this.fileList = [];
        //   return [];
        // }
      },
      deep: true,
      immediate: true,
    },
  },
  computed: {
    // 是否显示提示
    showTip() {
      return this.isShowTip && (this.fileType || this.fileSize);
    },
  },
  methods: {
    //查询sopfile
    getSOPfile() {
      let param = {
        productCode: this.productTechInfo.productCode,
        bomVersionCode: this.productTechInfo.bomVersioncode,
      };
      getfilelist(param).then((res) => {
        if (res.code == 200) {
          this.fileList = res.data;
          this.$emit("input", this.fileList);
          console.log(this.fileList, "查询sop的res");
        }
      });
    },
    // 上传前校检格式和大小
    handleBeforeUpload(file) {
      // 校检文件类型
      if (this.fileType) {
        const fileName = file.name.split(".");
        const fileExt = fileName[fileName.length - 1];
        const isTypeOk = this.fileType.indexOf(fileExt) >= 0;
        if (!isTypeOk) {
          this.$modal.msgError(
            `文件格式不正确, 请上传${this.fileType.join("/")}格式文件!`
          );
          return false;
        }
      }
      // 校检文件大小
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024 < this.fileSize;
        if (!isLt) {
          this.$modal.msgError(`上传文件大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      // this.$modal.loading("正在上传文件，请稍候...");
      this.number++;
      return true;
    },
    // 文件个数超出
    handleExceed() {
      this.$modal.msgError(`上传文件数量不能超过 ${this.limit} 个!`);
    },
    // 上传失败
    handleUploadError(err) {
      this.$modal.msgError("上传文件失败，请重试");
      this.$modal.closeLoading();
    },
    // 上传成功回调
    handleUploadSuccess(res, file) {
      if (res.code === 200) {
        this.$modal.msgSuccess("上传成功");
        // this.uploadList.push({ name: res.data.url, url: res.data.url });
        this.uploadedSuccessfully();
      } else {
        this.number--;
        this.$modal.closeLoading();
        this.$modal.msgError(res.msg);
        this.$refs.fileUpload.handleRemove(file);
        this.uploadedSuccessfully();
      }
    },
    // 删除文件
    handleDelete(index) {
      console.log("文件删除的...",);
      delfile(this.fileList[index].id).then(res=>{
        console.log(res,'文件删除的res');
        if(res.code == 200){
          this.$modal.msgSuccess("删除成功");
          this.getSOPfile()
        }
      })
      // this.fileList.splice(index, 1);
      this.$emit("onRemoved", this.fileList);
      // const findex = this.fileList.map(f => f.url).indexOf(index);
      // if (findex > -1) {
      //   this.fileList.splice(findex, 1);
      //   this.$emit("onRemoved", this.fileList);
      // }
    },
    // 上传结束处理
    uploadedSuccessfully() {
      // console.log(this.number,'this.number',this.uploadList.length,'this.uploadList.length');
      // if (this.number > 0 && this.uploadList.length === this.number) {
      // this.fileList = this.fileList.concat(this.uploadList);
      this.uploadList = [];
      this.number = 0;
      this.getSOPfile();
      this.$modal.closeLoading();
      // }
    },
    // 获取文件名称
    getFileName(name) {
      console.log(name, "======name=====");
      if (name.lastIndexOf("/") > -1) {
        return name.slice(name.lastIndexOf("/") + 1);
      } else {
        return "";
      }
    },
    // 对象转成指定字符串分隔
    // listToString(list, separator) {
    //   let strs = "";
    //   separator = separator || ",";
    //   for (let i in list) {
    //     strs += list[i].url + separator;
    //   }
    //   return strs != "" ? strs.substr(0, strs.length - 1) : "";
    // },
  },
};
</script>
  
  <style scoped lang="scss">
.upload-file-uploader {
  margin-bottom: 5px;
}
.upload-file-list .el-upload-list__item {
  border: 1px solid #e4e7ed;
  line-height: 2;
  margin-bottom: 10px;
  position: relative;
}
.upload-file-list .ele-upload-list__item-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: inherit;
}
.ele-upload-list__item-content-action .el-link {
  margin-right: 10px;
}
</style>